Elevator.



- Patented Dec. 9. 1902. F. T. ELLITHORPE. v

EL EVATOL (Application filed &fly 15 1.902.)

No Model.)

NORRIS VETERS ca vuovourum wAsHNGTON, a. c.

UNITED STATES PATENT OFFICE.

FREDERICK T. ELLITHORPE, OF NEWARK, NEW JERSEY.

ELEVATO R.

SPECIFICATION forning part of Letters Patent No. '715,648, dated December 9, 1902.

Application filed July 15,1902. Serial No. 115.709. (No model.)

To all whom it mar/y concrn:

Be it known that I, FREDERICK T. ELLI- THORPE, a citizen of the United States, residing at Newark, in the County of Essex and State of New Jersey, have invented new and useful Improvements in Elevators, of which the following is a speoification.

My invention relates to elevators and contemplates the provision of means calculated to record every failure of an elevator-conductor to properly close the shaft-doors at landings before starting his car from the landings, this with a View of enabling a person in authority to readily ascertain the number of times the conductor is delinquent in the respect mentioned, and tbereby placing a check on the carelessness of the cond uctor. When the conductor is aware that his employer will undoubtedly learn of the starting of the car from a landing before the shaftdoor is properly closed, he will be careful to securely close the door before causing the car to move, and in consequence the liability of a person being caught in the door-opening of the shaft and injured will be reduced to a minimum.

With the foregoing in mind the invention will be f ully understood from the following description and claims, when taken in conjunction with the annexed drawings, in which Figure l is a horizontal section illustrating portions of an elevator-shaft wall and an ele- Vator-car equipped with my improvements, said section being taken on the broken line 1 1 of Fig. 2. Fig. 2 isa vertical section taken in the plane indicated by the broken line 2 2 of Fig. l. Fig. 3 is an enlarged detail horizontal section illustrating the positions which the partsof my improvement-s on the shaft will assume when the shaft-door is opened. Fig. 4: is a Vertical section taken on the 'broken line 4 4 of Fig. 3, and Fig. 5 is an enlarged detail vertical section taken in the plane indicated by the broken line 5 5 of Fig. 2.

Similar letters of reference designate corresponding parts in all of the several views of the drawings, referring to which- A is the front wall of an elevator-shaft, provded with a door-opening B and an angular flange B' at one side of said opening; C, a landing; D, a shaft-door movable toward and from the fiange B' and designed to normally close the opening B; E, an elevator-car having an openingF in its front Wall G, arranged to coincide with the opening B; H H, bailshaped frames connected to the side of fiange B' remote from the door D and having fixed horizontal rods a, which extend into openings b, provided in said fiange B'; I I', tappets mounted on the upper and lower bars and the rods a of the frames H, so as to slidably move in the same direction as the door D, and having portions c disposed in the apertures Z of the flange B' and also having angular arms d; J J, coiled springs arranged on the rods a back of the tappets and having for their purpose to cause the tappets to assume the position shown in Fig. 3 when the door D is open, and K a shoe, preferably rounded, as shown in Fig. 4, arranged at the front side of the car E in such position that it is adapted when the floor of the car is flush or approximately flush with the landing C to rest between the horizontal planes of the upper tappet I and the lower tappet I'. The said shoe K is also arranged in such a position that it rests between and in Vertical alinement with the outer portions of the arms d of the tappets I I' when the carfloor is flush with the landing C and the door D is open. The shoe is provided with a stern e, arranged in bearings ff' on the car, and is normally held in the position shown in Figs. 3 and 4 by a coiled spring g.

By reason of the construction thus far described it will be observed that when the door D is closed it presses the tappets I I' against the action of the springs J into the position shown in Fig. 1 and by so doing carries the arms d of the tappets out of the path of the shoe K. In consequence of this when the car is moved either up or down from the landing it will pass the arm d of one of the tappets without being engaged and moved thereby. In the event, however, that the door D is not closed precedent to the movement of the car from the landing it will be seen that the arms d of the tappets will rest in the path of the shoe K. consequently if the car is moved upwardly from the landing the shoe K will be engaged by the arm d of the upper tappet I, while if the movement of the car is downwardly from the landing the shoe will be engaged by the arm d of the lower tappet I'. In either case the shoe and its stem e will be pressed inwardly-'. e., in the direction indicated by arrow in Fig. 4- for a purpose presently described.

L, Fig. 4:, is a case connected to the side wall of the car E and containing the stern e and spring g ot' the shoe K. Said case is preferably formed in whole or part of glass and by preference has a locked door, (not shown,) so that only a person in authority may gain access to its interier.

In addition to the stern e and spring g of the shoe K the case L contains a reel M, mounted on a short shaft h; a sheave N, mounted on a short shat't 'i adjacent to the reel and having a circumferential groovej; a wheel P, mounted on a short shaft k and having a rim Z, of rubber or equivalent material, and also having ratchet-teetl m; a wheel Q, mounted on a short shaft n and having a rim p, of rubber, disposed adjacent to that of the wheel P; a guide R, disposed adjacent to the periphery of the wheel Q; a tape S, of paper or other suitable material, wound on the reel M and passed around the sheave N and wheel P and between the latter and the wheel Q and also between said wheel Q and the guide R, and a lever T, which is normally held in and returned to the position shown by a coiled spring U and is provided on its upper arm with a point V, arranged to form a puncture in the tape S as the same passes over the sheave N, and on its lower arm with a pawl W, the latter being pressed against the ratchet-teeth m of the wheel P by a spring X.

The lower arm of the lever T is normally held by the spring U against the end of the stem e on shoe K. Consequently it will be seen that when the shoe is moved in the direction indicated by the large arrow, Fig. 4, under the conditions and by the means before described the lever T will be rocked in the direction indicated by the small curvilnear arrow, Fig. 4, and its point V caused to puncture the portion of the tape S which rests over the circumferential groove in the sheave N. When the shoe is released and is moved by the spring gin the direction opposite to that indicated by arrow, the lever T Will be returned to the position shown. Incident to this latter movement of the lever the pawl W Will turn the wheel P the distance of one tooth, this to feed the tape S forwardly, so that a fresh portion of the same will be presented to the point V on the neXt operation of the recording mechanism.

When desirable, a gong Y is arranged in the case, and the lever T is equipped with a hammer Z, arranged to strike the gong When the lever is rocked in the direction indicated by the curvilinear arrow. By virtue of this provision when the recording mechanism is operated the elevator-conductor is apprised of his failure to properly close the shaft-door before starting the car, as are also those on the car with him.

It will be appreciated from the foregoing that when an elevator shaft and car are equipped with my improvements a puncture will be made in the tape S incident to each and every failure of the elevator conductor to properly close a shaft-door before starting his car from a landing; also, that by opening the case L and referring to the tape S the owner or other person in charge of a building is enabled to readily ascertain the number of times a conductor fails to properly close the shaft-doors during a day or other period.

The case L is preferably em ployed, because it is calculated to efectually prevent the conductor orany other unauthorized person from tampering with the tape or other parts of the recording mechanism.

I prefer to employ the recording or recordmaking and alarm mechanisn shown in Fig. 4: in conjnnction with the shoe K and the tappets I I' because of the efficiency and reliability of said mechanism. I do not desire, however, to be understood as confining myself to the use of such recording or recordmaking and alarm mechanism, as any other means may be employed for giving notice by sound or otherwise when the car is started before a shaft-door is closed and the shoe K is actnated by one of the tappets I I'.

lt willbe gathered from the foregoing that my improvenents operate to make an elevator conductor very careful in closing the shaft-doors precedent to starting the car in either direction from landings. This will be appreciated as a highly-important advantage when it is remembered that many distressing accidents have been caused by elevator conductors starting their cars before entirely closing the shaft-doors.

While I have shown but one landing and tappets I I' adjacent thereto, it is obvious that tappets I I' will be provided adjacent to each landing of an elevator-shaft.

I have entered into a detailed description of the construction and relative arrangement of parts embraced in the present em bodiment of my invention in order to impart a full, clear, and exact understanding of the same. I do not desire, however, to be understood as confining myself to such specific construction and arrangenent of parts, as such changes or modifications may be made in practice as fairly fall within the scope of my invention.

While designed more particularly for use in elevators, I desire it understood that my improved recording mechanism may be used to advantage in other connections to which it is applicable.

Having described my invention, what I claim, and desire to secure by Letters Patent, s-

1. The combination of an elevator-shaft equipped with a door, a car, and means for giving notice-a'. e., making it known-when the car is moved from a landing of the shaft before the door is closed; the said means be- IOO ing arranged to be rendered idle by the closing of the door, and operative by the opening of the door.

2. The combination of an eleVator-shaft equipped with a door, a car, and means controlled by the door for giving notice When the car is moved from a landing before the door is closed.

3. The combination of an elevator shaft equipped with a door, a car, and coacting means on the shaft and car for giving notice when the car is moved from a landing of the shaft before the door is closed.

4:. The combination of an elevator-shaft equipped with a door, a car, and coacting means on the shaft and car, controlled by the door and calculated to give notice when the car is moved from a landing of the shaft before the door is closed.

5. The combination of an elevator-car, a shaft eqnipped with a door, and coacting means on the car and shaft for giving notice or making it known when the car is moved from a landing before the door is closed; the means on the shaft being arranged to be thrown out of operation by the closing of the door.

6. The combination of an elevator-slaft equipped with a door, movable tappets arranged on the shaft and controlled by the door, a car, a shoe on the car arranged to be engaged by one of the tappets, incident to movement of the car from a landing of the shaft, when the tappets are in one position, and means operated by the shoe for giving noice or making it known when the shoe is engaged by a tappet.

7. The combination of an elevator-shaft equipped with a door, npper and lower springpressed tappets arranged on the shaft so as to be moved against the action of the springs by the door when said door is closed, a cara movable shoe on the car, arranged, when the floor of the car is fiush with a landing of the shaft, and the door is open, to rest between and in alinement with the tappets, and means operated by the shoe for giving notice or making it known when the shoe is engaged by one of the tappets.

S. An elevator-car, a movable shoe carried thereby, and means operated by the shoe for giving notice or making it known when the shoe is moved; in combination with an elevator-shaft equipped with a door, and movable tappets arranged on the shaft and con trolled bythe door; the said tappets being arranged in one position to rest above and below and in alinement With the shoe, When the floor of the car is at a landing of the shat't, and in another position to rest out of alinement with the shoe.

9. The combination of an elevator-shaft equipped with a door, upper and lower tappets arranged on the shaft so as to be moved in one direction by the door When the latter is closed, means such as springs for moving the tappets in' the other direction when the door is opened, a car, a movable shoe carried by the car in such position that when the car is at a landing of the shaft and the door is' open, it will rest between and in vertical alinement with the tappets, and means operated by the shoe for giving notice-t'. e., making it known-when the shoe is engaged and moved by one of the tappets.

10. The combination of an elevator-shaft equpped With a door, acar, a movable device on the car, means arranged on the shaft and controlled by the door for engaging and moving the device on the car when the car is moved from a landing of the shaft precedent to the closing of the door, a tape carried by the car, and means controlled by the movable device on the car for puncturing the tape and feeding the same forwardly incident to each operation of said movable device.

11. The combination of an elevator-shaft equipped With a door,upper and lower tappets arranged on the carso as to be moved in one direction by the door when said door is closed, means, as springs, for moving the tappetsin the other direction When the door is opened, a car, a movable shoe carried by the car, and arranged when the car is at a landing of the shaft, and the door is open, to rest between and in vertical alinement With the tappets, a reel arranged in the car, a tape wound on the reel, tape-feeding mechanism engaging the tape, and a lever arranged to be operated by the shoe, and equipped with means for puneturing the tape and actuating the feed nechanism.

In testimony whereof I' have hereunto set my hand in presence of two subscribing witnesses.

`FREDERICK T. ELLITHORPE.

Witn esses:

C. H. RAEDER, N. C. HEALY.

IOO 

